package cn.wolfcode.car.business.service.impl;

import cn.wolfcode.car.base.domain.server.Sys;
import cn.wolfcode.car.business.domain.Appointment;
import cn.wolfcode.car.business.domain.BpmnInfo;
import cn.wolfcode.car.business.mapper.AppointmentMapper;
import cn.wolfcode.car.business.mapper.BpmnInfoMapper;
import cn.wolfcode.car.business.query.BpmnInfoQuery;
import cn.wolfcode.car.business.service.IBpmnInfoService;
import cn.wolfcode.car.common.base.page.TablePageInfo;
import cn.wolfcode.car.common.config.SystemConfig;
import cn.wolfcode.car.common.exception.BusinessException;
import cn.wolfcode.car.common.util.Convert;
import cn.wolfcode.car.shiro.ShiroUtils;
import com.github.pagehelper.PageHelper;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.image.ProcessDiagramGenerator;
import org.activiti.image.impl.DefaultProcessDiagramGenerator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.Collections;
import java.util.Date;
import java.util.List;

@Service
@Transactional
public class BpmnInfoServiceImpl implements IBpmnInfoService {

    @Autowired
    private BpmnInfoMapper bpmnInfoMapper;
    @Autowired
    private RepositoryService repositoryService;




    @Override
    public TablePageInfo<BpmnInfo> query(BpmnInfoQuery qo) {
        PageHelper.startPage(qo.getPageNum(), qo.getPageSize());
        return new TablePageInfo<BpmnInfo>(bpmnInfoMapper.selectForList(qo));
    }


    @Override
    public void save(BpmnInfo bpmnInfo) {
        bpmnInfoMapper.insert(bpmnInfo);
    }

    @Override
    public BpmnInfo get(Long id) {
        return bpmnInfoMapper.selectByPrimaryKey(id);
    }


    @Override
    public void update(BpmnInfo bpmnInfo) {
        bpmnInfoMapper.updateByPrimaryKey(bpmnInfo);
    }


    @Override
    public List<BpmnInfo> list() {
        return bpmnInfoMapper.selectAll();
    }

    @Override
    @Transactional
    public void deploy(String bpmnPath, String bpmnType, String info) throws FileNotFoundException {
        //通过流程文件地址找到流程文件
        File file = new File(SystemConfig.getProfile(),bpmnPath);
        //把流程文件部署到activiti中（获取部署对象和流程定义对象）
        Deployment deployment = repositoryService.createDeployment()
                .addInputStream(bpmnPath, new FileInputStream(file))
                .deploy();
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .deploymentId(deployment.getId())
                .singleResult();
        //创建BpmnInfo对象
        BpmnInfo bpmnInfo = new BpmnInfo();
        bpmnInfo.setBpmnType(bpmnType);
        bpmnInfo.setDeploymentId(deployment.getId());
        bpmnInfo.setDeployTime(new Date());
        bpmnInfo.setInfo(info);
        bpmnInfo.setActProcessId(processDefinition.getId());
        bpmnInfo.setActProcessKey(processDefinition.getKey());
        bpmnInfo.setBpmnName(processDefinition.getName());
        bpmnInfoMapper.insert(bpmnInfo);
    }

    @Override
    public InputStream getResourceAsStream(String deploymentId, String type) {
        //获取流程定义对象
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .deploymentId(deploymentId)
                .singleResult();
        if("xml".equalsIgnoreCase(type)){
            String xmlResourceName = processDefinition.getResourceName();
            return repositoryService.getResourceAsStream(deploymentId,xmlResourceName);
        }else{
            //png
            BpmnModel model = repositoryService.getBpmnModel(processDefinition.getId());
            ProcessDiagramGenerator generator = new DefaultProcessDiagramGenerator();
            //generateDiagram(流程模型,需要高亮的节点,需要高亮的线条,后面三个参数都表示是字体)
            InputStream inputStream = generator.generateDiagram(model, Collections.EMPTY_LIST, Collections.EMPTY_LIST, "宋体", "宋体", "宋体");
            return inputStream;
        }
    }

    @Override
    @Transactional
    public void delete(Long id) {
        BpmnInfo bpmnInfo = this.get(id);
        bpmnInfoMapper.deleteByPrimaryKey(id);
        //获取部署iD
        String deploymentId = bpmnInfo.getDeploymentId();
        //删除流程定义（级联删除）
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .deploymentId(deploymentId)
                .singleResult();
        repositoryService.deleteDeployment(deploymentId,true);
        //获取流程文件
        String resourceName = processDefinition.getResourceName();
        File file = new File(SystemConfig.getProfile(),resourceName);
        if(file.exists()){
            file.delete();
        }
    }


    @Override
    public BpmnInfo queryByBpmnType(String car_package) {
        return bpmnInfoMapper.queryByBpmnType(car_package);
    }
}
